Shot for the same A/F that you would shot for with gas. It will be no diff even though its on the gas scall. Because the O2 sensor really reads Lambda and then converts it to A/F its still reading the E85 the right way even though its translating it to you in a gas A/F scall. So when it reads 14.7 its still reading the stoich of the E85 ( what ever its true number would be) .


ON a power adder I would go around 11.5 to 12.2 WOT with the power adder. The engine will tell you if it needs to go a little richer than that, or needs less timing.


E85 can stand a wider range of A/F numbers than gas and still be safe, or run smooth. At a cruise for example I am runnning around 16.5 (gas scale, but with E85). I cant run that lean with gas it will surge and missfire. At WOT I run 12.8 to 13.2 WOT and it loves it, but I am not running a power adder, that is N/A. EVen if I let it get leaner, or richer at WOT it still runs good with no problems because its much more forgiving.


So pretty much you have been told right about what to run. The main thing to remember is the sensor is still reading Lambda so it knows what the E85 is at, even though it is telling you in a gas A/F scale, its still so much % leaner, or richer than stoich. Doing it this way is just much easier when the gas A/F scale is what your use to. If your use to reading Lambda then you can go to the lambda scale, but when your not use to Lambda you will find yourself refering back to the gas A/F scale to even understand what its telling you, so no use to change.



Jess

This is exciting. I've never had real data like this to work with outside of work. . .